Results 11 to 20 of about 159,458 (294)
Time–Frequency Respiratory Impedance Maps Enable Within-Breath Deep Learning for Small Airway Dysfunction Identification [PDF]
BioengineeringSmall airway dysfunction (SAD) is an early functional abnormality associated with multiple chronic airway diseases. However, clinical assessment often relies on spirometry-based indices, which require forced maneuvers and are sensitive to subject effort,
Dongfang Zhao +9 more
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Frontiers in Bioengineering and Biotechnology, 2023 Individuals with acute neurological or limb-related disorders may be temporarily bedridden and unable to go to the physical therapy departments. The rehabilitation training of these patients in the ward can only be performed manually by therapists ...
Daoyu Wang +7 more
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Identification of Grid Impedance by Broadband Signals in Power Systems with High Harmonics
Energies, 2021 Grid impedance is an important parameter and is used to perform impedance-based stability analysis for the operation of grid-connected systems, such as power electronics-interfaced solar, wind and other distributed power generation systems.
Matthias Buchner, Krzysztof Rudion
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Frontiers in Energy Research, 2023 To cope with the energy crisis and environmental degradation, the new energy represented by wind and photovoltaic power generations have developed rapidly, which leads to a large number of power electronic converters being connected to the power grid. In
Changjun Zhao +3 more
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Review of Local Network Impedance Estimation Techniques
IEEE Access, 2020 As a result of increasing variability of network impedance, interest in impedance estimation techniques is growing. This review contextualises local impedance estimation techniques by providing a historical prospective on the uses of these techniques ...
Mathieu Kervyn De Meerendre +5 more
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Frontiers in Physics, 2021 Electromechanical impedance (Electromechanical impedance)-based methods as potential nondestructive evaluation (NDT) techniques have been widely used in the field of structural health monitoring (SHM), especially for the civil, mechanical, and aerospace ...
Yabin Liang +13 more
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A Harmonic Impedance Identification Method of Traction Network Based on Data Evolution Mechanism
Energies, 2020 In railway electrification systems, the harmonic impedance of the traction network is of great value for avoiding harmonic resonance and electrical matching of impedance parameters between trains and traction networks.
Ruixuan Yang, Fulin Zhou, Kai Zhong
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Bayesian identification of acoustic impedance in treated ducts [PDF]
The Journal of the Acoustical Society of America, 2015 The noise reduction of a liner placed in the nacelle of a turbofan engine is still difficult to predict due to the lack of knowledge of its acoustic impedance that depends on grazing flow profile, mode order, and sound pressure level. An eduction method, based on a Bayesian approach, is presented here to adjust an impedance model of the liner from ...
Y, Buot de l'Épine +2 more
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Energies, 2023 The accurate detection and identification of intermittent cable faults are helpful in improving the reliability of the distribution system. This paper proposes intermittent fault detection and identification for distribution networks based on machine ...
Mojgan Hojabri +2 more
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Electrical properties of breast cancer cells from impedance measurement of cell suspensions [PDF]
, 2010 Impedance spectroscopy of biological cells has been used to monitor cell status, e.g. cell proliferation, viability, etc. It is also a fundamental method for the study of the electrical properties of cells which has been utilised for cell identification ...
A Sinclair +9 more
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